Effects of Drinking Slightly Acidic Electrolytic Water on Growth Performance and Behavior of Broilers

[Objective]The paper was to study the effects of drinking slightly acidic electrolytic water on growth performance and behavior of Rose 308 broilers,and to provide reference for the application of slightly acidic electrolytic water in broiler breeding.[Method]A total of 300 healthy 10-day-old Rose 308 broilers with similar body weight were randomly divided into five groups,three replicates each group,20 broilers each replicate.The broilers in control group were supplied with normal drinking water,and the broilers in experimental groups consumed slightly acidic electrolytic water with 0.3,0.5,0.7,1.0 mg/L residual chlorine,respectively.The test lasted 21 d.[Result]At 10-30 days of age,the water consumption of broilers in 0.7 and 1.0 mg/L electrolytic water groups were increased by 9.27%and 7.67%respectively compared with the control group(M<0.05).The average daily feed intake(ADFI)of broilers in 0.7 and 1.0 mg/L electrolytic water groups were increased compared with the control group(Q0.05).The average daily gain(ADG)of broilers in 0.7 mg/L electrolytic water group was 11.99%lower than that in control group(M<0.05).The feed gain ratio(F/G)of broilers in 0.5 mg/L electrolytic water group was 12.29%lower than that in control group(M<0.05),and the mortality was the lowest in 0.5 mg/L electrolytic water group.The standing,feeding and drinking frequency of broilers in experimental groups were higher than that in control group,and the flapping behavior of broilers in 0.5 mg/L electrolytic water group was the lowest.[Conclusion]Drinking slightly acidic electrolytic water has positive effect on the growth and behavior of broilers.

微酸性电解水-超声波并行联合处理对鲜切生菜表面大肠杆菌杀菌效果的影响

为探明微酸性电解水(slightly acidic electrolyzed water,SAEW)与超声波(ultrasonic,US)并行联合处理对鲜切生菜表面大肠杆菌(Escherichia coli)的杀菌效应,本研究在不同料液比(1∶5、1∶10、1∶15(g/mL))和不同温度(25、35、45℃)条件下采用SAEW-US并行联合处理鲜切生菜,并用平板计数法测定生菜表面E.coli菌落数,对菌落数的变化情况进行协同效应分析及动力学分析。采用流式细胞术和双层培养计数法对处理后的E.coli进行亚致死损伤检测。结果表明,SAEW-US并行联合处理的杀灭E.coli效力高于SAEW单一作用时的杀灭E.coli效力,随着处理时间的延长、溶剂用量的增加和温度的提高,杀灭E.coli效果显著增强。SAEW-US并行联合处理对于杀灭E.coli具有“1+1>2”的协同效应,且杀菌过程遵循一级动力学模型。SAEW-US并行联合处理比单独SAEW处理杀灭E.coli效果强,并且能降低E.coli亚致死损伤数量。综上可知,SAEW-US并行联合处理鲜切生菜表面E.coli存在协同效应,相关结果可为鲜食农产品的杀菌提供理论依据。

厚朴大黄汤联合西药治疗慢性阻塞性肺疾病急性期随机平行对照研究

[目的]观察厚朴大黄汤联合西药治疗慢性阻塞性肺疾病急性期疗效。[方法]使用随机平行对照方法,将60例住院患者按就诊顺序编号简单随机分为两组。对照组30例头孢类、喹诺酮类抗感染,持续低流量吸氧,纠正酸碱水电解质紊乱等常规治疗,必要时予呼吸兴奋剂、支气管扩张剂等抢救措施。治疗组30例厚朴大黄汤加减（厚朴10g,大黄5-10g,炙麻黄6g,杏仁10g,生姜6g,杏仁10g,甘草15g,大枣10g;喘促气急加葶苈子15g;大量黄痰加黄芩、鱼腥草各10g;发热加金银花15g,连翘10g;双下肢水肿加茯苓25g,薏苡仁30g）,水煎400m L,200m L/次,早晚温服;西药治疗同对照组。连续治疗15d为1疗程。观测临床症状、咳嗽、痰量、肺部啰音、不良反应。连续治疗2疗程,判定疗效。[结果]治疗组显效19例,有效10例,无效1例,总有效率96.32%;对照组显效11例,有效11例,无效8例,总有效率33.25%;治疗组疗效优于对照组（P〈0.05）[结论]厚朴大黄汤联合西药治疗慢性阻塞性肺疾病急性期,疗效满意,无严重不良反应,值得推广.

微酸性电解水与超声波联合处理对中华马鲛杀菌效果的影响

探究微酸性电解水(SAEW)联合超声波(US)处理对中华马鲛品质的影响。以SAEW浸泡时间、物料质量与SAEW体积比(料液比,m:v)、US功率、时间为单因素设计单一杀菌实验,得到最佳杀菌工艺。以该优化工艺为基础,进一步观察了同时SAEW-US处理、先US后SAEW处理、先SAEW后US处理3种不同微酸电解水与超声波联合处理方式对中华马鲛的pH值、挥发性盐基氮(TVB-N)、细菌总数(TBC)的影响。结果显示:在料液比1:3、浸泡15 min、超声功率300 W、超声15 min的条件下,TBC相比空白组下降了1.4 lg cfu/mL,杀菌效果最佳。表明微酸电解水和超声波处理均有良好的杀菌效果。同时进行SAEW-US处理相比先US后SAEW、先SAEW后US顺序组合,TVB-N低至4.90 mg/100 g,鱼肉更新鲜,TBC分别降低了0.1 lg cfu/mL、0.17 lg cfu/mL,杀菌效果更明显。综上所述,SAEW-US组合杀菌方式比单一SAEW和US有更好的杀菌保鲜效果,同时进行SAEW-US处理相比其他2个组合顺序有更好的灭菌效果。